From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Breno Leitao <leitao@debian.org>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Cc: Breno Leitao <leitao@debian.org>
Subject: Re: scripts: Add ppc64le support for checkstack.pl
Date: Wed, 11 Jul 2018 23:24:04 +1000 (AEST) [thread overview]
Message-ID: <41Qfsw3GCDzB4MP@ozlabs.org> (raw)
In-Reply-To: <1511897374-27408-1-git-send-email-leitao@debian.org>
On Tue, 2017-11-28 at 19:29:34 UTC, Breno Leitao wrote:
> 64-bit ELF v2 ABI specification for POWER describes, on section "General
> Stack Frame Requirements", that the stack should use the following
> instructions when compiled with backchain:
>
> mflr r0
> std r0, 16(r1)
> stdu r1, -XX(r1)
>
> Where XX is the frame size for that function, and this is the value
> checkstack.pl will find the stack size for each function.
>
> This patch also simplifies the entire Powerpc section, since just two
> type of instructions are used, 'stdu' for 64 bits and 'stwu' for 32 bits
> platform.
>
> Signed-off-by: Breno Leitao <leitao@debian.org>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/8449a4cb69ab6fbb873d653a82787a
cheers
prev parent reply other threads:[~2018-07-11 13:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-28 19:29 [PATCH] scripts: Add ppc64le support for checkstack.pl Breno Leitao
2018-07-11 13:24 ` Michael Ellerman [this message]
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